package com.day06;

public class ArrayExer1 {
    public static void main(String[] args){
        int [][] arr = new int[][]{{3,5,8},{12,9},{7,0,6,4}};
        int sum = 0;//记录总和
        for(int i = 0;i < arr.length;i++){
            for(int j = 0;j < arr[i].length;j++){
                sum += arr[i][j];
            }
        }
        System.out.println("总和为："+ sum);
    }
}
